The Technology Immersion Pilot (TIP) sets forth a vision for technology immersion in Texas public schools that links ubiquitous access to technology with student achievement. The Texas Education Agency (TEA) directed nearly $14 million in federal Title II, Part D monies toward funding a wireless learning environment for high-need middle schools through a competitive grant process. Concurrently, a federally funded research project is scientifically evaluating the effectiveness of technology immersion in increasing middle school students' achievement in core academic subjects as measured by the Texas Assessment of Knowledge and Skills (TAKS). Technology immersion encompasses multiple components, including a laptop computer for every middle school student and teacher, wireless access throughout the campus, online curricular and assessment resources, professional development and ongoing pedagogical support for curricular integration of technology resources, and technical support to maintain an immersed campus. This evaluation, with 22 experimental and 22 control sites, is also examining the relationships that exist among contextual conditions, technology immersion, intervening factors (school, teacher, and student), and student achievement. Of particular interest are the effects of technology immersion on teachers' classroom practices and students' learning opportunities. Accordingly, this report centers on classroom observations conducted in sixth-grade classrooms at immersed and control schools during fall 2004 (prior to immersion) and spring 2005 (during early implementation). Appended are: (1) Theoretical Framework for Technology Immersion; (2) Observation of Teaching and Learning; and (3) Framework of Assessment Approaches and Methods. (Contains 3 figures and 10 tables.)